title: Inhibitors of cholesterol biosynthesis. 2. 1,3,5-trisubstituted [2-(tetrahydro-4-hydroxy-2-oxopyran-6-yl)ethyl]pyrazoles.
abstract: A series of 1,3,5-trisubstituted pyrazole mevalonolactones were prepared and evaluated for their ability to inhibit the enzyme HMG-CoA reductase in vitro. Since previous studies suggested that the 5-(4-fluorophenyl) and 3-(1-methylethyl) substituents afforded optimum potency, attention was focused on variations in position 1 of the pyrazole ring. Biological evaluation of analogues bearing a variety of 1-substituents suggested that, although most substituents were tolerated, none afforded an advantage over phenyl, which exhibited potency comparable to that of compactin in vitro.
authors.affiliation: Parke-Davis Pharmaceutical Research Division, Warner-Lambert Company, Ann Arbor, Michigan 48105.
authors.forename: D R
authors.initials: DR
authors.lastname: Sliskovic
authors.forename: B D
authors.initials: BD
authors.lastname: Roth
authors.forename: M W
authors.initials: MW
authors.lastname: Wilson
authors.forename: M L
authors.initials: ML
authors.lastname: Hoefle
authors.forename: R S
authors.initials: RS
authors.lastname: Newton
mesh_terms: D000818:Animals; D055598:Chemical Phenomena; D002621:Chemistry; D002784:Cholesterol / Q000096:biosynthesis*; D019161:Hydroxymethylglutaryl-CoA Reductase Inhibitors; D007783:Lactones; D008099:Liver / Q000201:enzymology; D008148:Lovastatin / Q000031:analogs & derivatives / Q000494:pharmacology; D008798:Mevalonic Acid / Q000031:analogs & derivatives* / Q000138:chemical synthesis / Q000494:pharmacology; D008968:Molecular Conformation; D015394:Molecular Structure; D011720:Pyrazoles / Q000138:chemical synthesis / Q000494:pharmacology*; D051381:Rats; D013329:Structure-Activity Relationship
chemical_list: D019161:Hydroxymethylglutaryl-CoA Reductase Inhibitors; D007783:Lactones; D011720:Pyrazoles; C012258:mevastatin; D002784:Cholesterol; D008148:Lovastatin; D008798:Mevalonic Acid